TWM629738U - Testing system for doing a cable test - Google Patents

Abstract

The invention discloses a testing system for doing a cable test, which includes a first reactor, a second reactor and a supporting device. The second reactor is coupled to the first reactor in series. The second reactor includes a reactor body and a corona ring, and a lower edge of the corona ring and a bottom surface of the reactor body are defined as a safety distance, wherein when the supporting device supports the bottom surface of the reactor body, a distance between the lower edge of the corona ring and a ground is greater than the safety distance.

Description

Test system suitable for testing a cable

This creation is about a test system, especially a test system that uses a support device to make the distance between the corona ring and the ground comply with the specifications of the test voltage specification for a single safety distance.

Generally speaking, the high electric field strength of high-voltage cables leads to the phenomenon of corona; corona is a partial discharge phenomenon caused by instantaneous ionization of gas in the insulation system when the voltage stress exceeds a certain critical value.

In order to ensure the safety of the surrounding environment when testing the cable, it is usually necessary to set a corona ring to prevent the corona phenomenon, and the distance between the corona ring and the ground must be based on the specifications of the test voltage specification, so as to effectively avoid the introduction of current. ground to maintain the safety of testers.

In response to different test fields, the test voltage specification book often specifies several different test conditions, and when the test voltage in the test conditions specified in the test voltage specification book is larger, the test voltage specification book will also correspond to the specification of the corona ring. Keep a large distance from the ground. However, typical cable testing rigs are often bulky and difficult to move. Therefore, how to ensure the distance between the corona ring and the ground when testing cables to meet the specifications in the test voltage specification book has become an important issue in the industry.

The present invention provides a test system suitable for testing a cable. The distance between the corona ring and the ground is complied with the specification of a test voltage specification by means of a supporting device.

According to an embodiment, the present invention discloses a testing system suitable for testing a cable, comprising: a first reactor, a second reactor and a support device; the second reactor is connected to the first reactor in series Coupling, the second reactor includes a reactor body and a corona ring, the reactor body has a bottom surface, and the corona ring is arranged on the reactor body and is used for coupling the cable, the corona ring The lower edge of the reactor body and the bottom surface of the reactor body define a single safety distance; the supporting device directly or indirectly contacts the bottom surface of the reactor body to support the reactor body of the second reactor on the Above a ground; wherein, when the supporting device directly or indirectly contacts and supports the bottom surface of the reactor body, the distance between the lower edge of the corona ring and the ground is greater than the safe distance of the single cell.

According to an embodiment, the present invention discloses a test system suitable for testing a cable, comprising: a first reactor and a second reactor; the first reactor is disposed on a ground; the second reactor is connected in series coupled with the first reactor, the second reactor includes a reactor body and a corona ring, the reactor body is directly or indirectly stacked on the first reactor, and the corona The ring is arranged on the reactor body and is used for coupling the cable. A lower edge of the corona ring and a bottom surface of the reactor body define a single safety distance; wherein, when the reactor body is in a direct or indirect manner When stacked on the first reactor, the distance between the lower edge of the corona ring and the ground is greater than the safety distance of the single cell.

According to an embodiment, a testing system suitable for testing a cable is disclosed, comprising: a first reactor and a second reactor, the first reactor includes a first reactor body and a first corona ring, The second reactor is coupled to the first reactor in parallel and includes a second reactor body and a second corona ring; the first corona ring is disposed on the first on the reactor body, and the second corona ring is arranged on the second reactor body and used to couple the cable, the minimum distance between the first corona ring and the second corona ring is not less than a specific value .

The foregoing and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of the embodiments with reference to the drawings.

2000: Cable

1000: Test System

1: The first reactor

10: The first reactor body

11: The first corona ring

2: The second reactor

20: Second reactor body

21: Second Corona Ring

3: support device

31: Fixed base

311: Taiwan body

312: Support column

32: Lifting support device

32': Mobile Support

321: Fixtures

322: Moving Pieces

323: Transfer Parts

324: Actuating Unit

51: The first equalizing ring

52: The second equalizing ring

53: Impedance parts

54: The first support

55: Second support

60: Electronic control unit

61: Transformer

70: Power Equipment

80: front

81: The first carrying trolley

82: Second carrying trolley

F: ground

S1: Single safety distance

S2: predetermined distance

FIG. 1 is a schematic diagram of a first embodiment of a testing system suitable for testing a cable.

Figure 2 is a partially enlarged schematic diagram of Part A of Figure 1 of the creation.

Figure 3 is a graph of test voltage and safety distance.

FIG. 4 is a schematic diagram of the second embodiment of the creation.

FIG. 5 is a schematic diagram of a third embodiment of the creation.

FIG. 6 is a schematic diagram of a fourth embodiment of the invention.

FIG. 7 is a schematic diagram of a fifth embodiment of the invention.

FIG. 8 is a schematic diagram of a sixth embodiment of the invention.

FIG. 9 is a schematic diagram of a seventh embodiment of the invention.

FIG. 10 is a schematic diagram of the eighth embodiment of the invention.

In order to enable those skilled in the art to further understand the present creation, the preferred embodiments of the present creation are listed below, and the constituent contents and the desired effects of the present creation are described in detail with the accompanying drawings. It should be noted that the accompanying drawings are simplified schematic diagrams, therefore, only the elements and combination relationships related to the present invention are shown to provide a clearer description of the basic structure or implementation method of the present invention, and the actual elements and layouts may be more for complex. In addition, for the convenience of description, the components shown in the drawings of the present invention are not drawn in equal scale with the actual number, shape, and size, and the detailed scale can be adjusted according to the design requirements.

The directional terms mentioned in the following embodiments, such as: up, down, left, right, front or rear, etc., are only for referring to the directions of the attached drawings. Therefore, the directional terms used are intended to be illustrative and not intended to limit the creation.

Although the terms first, second, third . . . may be used to describe various elements, the elements are not limited by these terms. This term is only used to distinguish a single element from other elements within the specification. The same terms may not be used in the claim, but replaced by first, second, third . . . according to the order in which the elements are declared in the claim. Thus, in the following description, the first element may be the second element in the claim.

Please refer to Figures 1 and 2. Figure 1 is a schematic diagram of a first embodiment of a test system suitable for testing a cable, and Figure 2 is a partially enlarged schematic diagram of Part A of Figure 1 of the Creation. The testing system 1000 is used for testing a cable 2000 and includes a first reactor 1 and a second reactor 2 . The first reactor 1 includes a first reactor body 10 and a first corona ring 11 disposed on the first reactor body 10 . The second reactor 2 is coupled to the first reactor 1 in series, and the second reactor 2 includes a second reactor body 20 and a second corona ring 21 disposed on the second reactor body 20 . In this embodiment, the first corona ring 11 is used for coupling to the second reactor body 20 , so that the second reactor body 20 of the second reactor 2 is coupled to the second reactor body 20 of the first reactor 1 in series. A reactor body 10 . The second corona ring 21 is disposed on the second reactor body 20 and is used for coupling with the cable 2000 .

In practice, the cable 2000 includes a Gas Insulated Switchgear (GIS), which mainly includes a combination of busbars, circuit breakers, CTs (current transformers), PTs, isolating switches and arresters, etc. For the sake of simplicity, the structure and configuration of the gas-insulated combined electrical equipment will not be repeated here.

The second reactor body 20 has a bottom surface, and the lower edge of the second corona ring 21 and the bottom surface of the second reactor body 20 define a single safety distance S1 . In practice, when this creative test When the testing system 1000 tests the cable 2000, in order to prevent the current generated by the conduction between the lower edge of the second corona ring 21 and the ground from causing harm to the test personnel, when testing the cable 2000, the second corona ring 21 The distance between the lower edge and the ground needs to be regulated by a test voltage specification. The greater the distance from the ground.

In practice, since the external size of the second reactor body 20 is fixed, the safety distance S1 of the cell defined by the lower edge of the second corona ring 21 and the bottom surface of the second reactor body 20 is a certain value. Therefore, when the test voltage of the cable 2000 tested by the inventive test system 1000 is greater than the test voltage corresponding to the single safety distance S1 of the second reactor body 20 , the height of the second reactor body 20 relative to a ground F needs to be adjusted , so that the distance between the lower edge of the second corona ring 21 and the ground can meet the specification of the test voltage specification.

Therefore, the creation and testing system 1000 includes a support device 3, which is disposed on a ground F, and can directly or indirectly contact and abut the bottom surface of the second reactor body 20, so as to connect the second reactor body 20 to the bottom surface. The second reactor body 20 of the reactor 2 is supported on the ground F. Wherein, when the supporting device 3 directly or indirectly contacts and supports the bottom surface of the second reactor body 20, the second reactor body 20 is supported from the ground F by the supporting device 3, so that the lower surface of the second corona ring 21 is supported. There is a predetermined distance S2 between the edge and the ground F (the predetermined distance S2 is also called distance), and the predetermined distance S2 is greater than the safety distance S1 of the monomer.

In practice, the first reactor 1 is further connected to an electronic control unit 60, and the electronic control unit 60 is used to set relevant parameters of the cable test, and is connected to a power supply device 70 (such as a substation), and the first reactor 1 A transformer 61 is provided between the electronic control unit 60 . The second corona ring 21 is connected to a first voltage equalizing ring 51, and the cable 2000 is connected to a second voltage equalizing ring 52 (the first voltage equalizing ring 51 and the second voltage equalizing ring 52 can distribute the high voltage evenly around, so as to achieve the effect of equalizing), and a resistance member 53 is arranged between the first equalizing ring 51 and the second equalizing ring 52, and the first equalizing ring The pressure ring 51 and the second pressure equalization ring 52 are supported by a first support member 54 and a second support member 55 disposed on the ground F, respectively.

In this embodiment, the first reactor 1 , the electronic control unit 60 and the transformer 61 are disposed on a first carrying trolley 81 , and the first carrying trolley 81 is connected to a head 80 so as to carry the first reactor 1 Move to the desired location. In practice, the first carrying trolley 81 can be a trailer, and the head 80 can be a head used to tow the trailer, but the first carrying trolley 81 and the head 80 in the present invention are not limited to this.

In more detail, due to the high electric field strength of high-voltage cables, a corona ring is usually required to avoid corona phenomenon in the surrounding environment, and the distance between the corona ring and the ground must be kept in compliance with regulations to ensure the safety of the cable testing process. Therefore, in this embodiment, the support device 3 is designed as a fixed base, including a body 311 and a support column 312 . The supporting columns 312 are arranged on the table body 311 , and each support column 312 is connected to the table body 311 and used to contact the ground F, so as to support the table body 311 above the ground F. As shown in FIG. Thereby, the safety distance S1 between the lower edge of the second corona ring 21 and the bottom surface of the second reactor body 20 is used to match the height of the support device 3 so that the lower edge of the second corona ring 21 is connected to the ground F A predetermined distance S2 is formed between the two, and the predetermined distance S2 formed between the lower edge of the second corona ring 21 and the ground F is substantially equal to the distance between the lower edge of the second corona ring 21 and the bottom surface of the second reactor body 20. The sum of the body safety distance S1 and the height of the support device 3 .

It is worth mentioning that, in this embodiment, since the first reactor 1 is coupled to the second reactor 2 in series, and the specifications of the first reactor 1 are the same as those of the second reactor 2, the first reactor 1 is The voltage of the second corona ring 21 of the second reactor 2 is twice that of the second reactor 2 or the first reactor 1 . Therefore, the predetermined distance S2 is substantially equal to twice the safety distance S1 of the single cell, and the safety distance S1 of the single cell in this creation is subject to the specifications of the test voltage and safety distance formulated by the International Electrotechnical Commission (IEC). , while this creation does not Subject to this limitation, it can also be regulated by the test voltage and safety distance established by various countries or other organizations. Please refer to Figure 3 for the requirements of the safety distance during the voltage test of the reactor. Figure 3 is a graph of the test voltage and the safety distance. As shown in Figure 3, the test voltage and safety distance specified by the standards of the Electrotechnical Commission, taking the test voltage of 26kV as an example, the safety distance is about 2 meters, but this creation is not limited to this.

Please refer to FIG. 4 , which is a schematic diagram of a second embodiment of the invention. The support device 3 is a lifting support device (such as a hydraulic cylinder, a pneumatic cylinder or a jack), which includes a fixed piece 321 and a movable piece 322. The fixed piece 321 is used to be fixed on the ground F, and the movable piece 322 can be opposite to The fixed part is arranged on the fixed part 321 in a telescopic manner, and one end of the movable part 322 is used to drive the reactor body 20 of the second reactor 2 to move up and down. In this way, by using the movable member 322 to drive the second reactance body 20 to move up or down, the distance between the lower edge of the second corona ring 21 and the ground F can be adjusted so that the lower edge of the second corona ring 21 is connected to the ground. The distance of F can meet the specifications of test voltage and safety distance.

Please refer to FIG. 5, which is a schematic diagram of a third embodiment of the invention. The support device 3 further includes a fixed base 31 and a second carrying trolley 82. The fixed base 31 includes a body 311 and a support column 312; The column 312 is connected to the platform body 311 , the second carrying trolley 82 is arranged on the ground F, and the supporting column 312 of the fixing base 31 is arranged on the second carrying trolley 82 . The difference from the first embodiment is that the first reactor 1 and the second reactor 2 in this embodiment are respectively installed on the first carrying trolley 81 and the second carrying trolley 82 , and are connected by the lower part of the second corona ring 21 . The single safety distance S1 between the edge and the bottom surface of the second reactor body 20 is matched with the height of the support device 3 and the second carrying trolley 82, so that the distance between the lower edge of the second corona ring 21 and the ground F can be consistent with Specification of test voltage and safety distance.

Please refer to FIG. 6 , which is a schematic diagram of a fourth embodiment of the invention. The support device 3 includes a second carrying trolley 82 and a lifting support device 32. The lifting support device 32 (for example, a hydraulic cylinder, a pneumatic cylinder or a jack) includes a fixed part 321 and a movable part 322; the second carrying trolley 82 is used for In order to carry the reactor body 20 of the second reactor 2 , the movable member 322 is disposed on the fixed member 321 in a telescopic manner relative to the fixed member, and one end of the movable member 322 is used to drive the second carrying trolley 82 to move up and down. In this way, by using the movable member 322 to drive the second carrying trolley 82 to move up or down, the distance between the lower edge of the second corona ring 21 and the ground F can be adjusted so that the lower edge of the second corona ring 21 and the ground can be adjusted. The distance between F can meet the specification of test voltage and safety distance.

Please refer to FIG. 7, which is a schematic diagram of a fifth embodiment of the invention. The support device 3 includes a lift support device 32 and a second carrying trolley 82 whose top can be retracted horizontally. The lift support device 32 (eg: hydraulic cylinder, pneumatic cylinder or jack) includes a fixed part 321 and a movable part 322; The part 322 is arranged on the fixed part 321 in a telescopic manner relative to the fixed part, one end of the movable part 322 is used to drive the second reactor body 20 of the second reactor 2 to move up and down, and the second carrying trolley 82 is arranged on the ground F, and the fixing member 321 of the lifting and supporting device 32 is arranged on the second carrying trolley 82 . Thereby, the movable member 322 drives the second reactance body 20 to move up or down, so that the distance between the second corona ring 21 and the second carrying trolley 82 can be adjusted; and when the movable member 322 drives the second reactance body 20 upwards When moving, the second reactance body 20 can be extended out of the second carrying trolley 82 by the horizontal contraction of the top of the second carrying trolley 82 . In this way, the distance between the lower edge of the second corona ring 21 and the ground F can be adjusted so that the distance between the lower edge of the second corona ring 21 and the ground F can meet the test voltage and safety distance specifications.

Please refer to FIG. 8, which is a schematic diagram of a sixth embodiment of the invention. The support device 3 includes a second carrying trolley 82 and a moving support device 32 ′. The moving support device 32 ′ includes a transfer member 323 and an actuating unit 324 ; the second carrying trolley 82 is set on the ground F, and the transfer member 323 It is arranged on the second carrying trolley 82 for contacting with the bottom surface of the second reactor body 20, and the actuating unit 324 is used for driving the displacement. The carrier 323 moves horizontally on the second carrying trolley 82 , thereby driving the second corona ring 21 of the second reactor 2 to move into or out of the second carrying trolley 82 horizontally. When the cable test needs to be performed, the second corona ring 21 is driven by the transfer member 323 to move out of the second carrying trolley 82, so that a predetermined distance S2 can be formed between the second corona ring 21 and the ground F. The predetermined distance S2 formed between the lower edge of the halo ring 21 and the ground F is substantially equal to the single safety distance S1 between the lower edge of the second corona ring 21 and the bottom surface of the second reactor body 20 and the second distance of the support device 3 . The sum of the heights of the carrying carts 82 .

Please refer to FIG. 9, which is a schematic diagram of a seventh embodiment of the invention. The difference from the first embodiment is that the test system 1000 only includes the first reactor 1 and the second reactor 2 , and the support device 3 is not provided. In design, when the second reactor body 20 is directly or indirectly stacked on the first reactor 1, a predetermined distance S2 is formed between the lower edge of the second corona ring 21 and the ground F, and the predetermined distance S2 is greater than the single safety distance S1. In this embodiment, the predetermined distance S2 is substantially equal to the sum of the single safety distance S1 and the height of the first reactor 1 , and conforms to the specification of a test voltage and safety distance.

Please refer to FIG. 10, which is a schematic diagram of an eighth embodiment of the invention. The testing system 1000 includes a first reactor 1 and a second reactor 2 , and the first reactor 1 and the second reactor 2 are respectively disposed on a first carrying trolley 81 and a second carrying trolley 82 . In this embodiment, the second reactor 2 is coupled to the first reactor 1 in parallel, and the minimum distance between the first corona ring 11 and the second corona ring 21 still needs to meet the test voltage and safety distance specification. In this embodiment, the minimum distance between the first corona ring 11 and the second corona ring 21 is not less than a specific value, preferably, for example: 100 cm.

It can be seen from the above description that in the present invention, the second corona ring 21 and the ground F (or the first carrying trolley 81 and the second carrying trolley 82 ) are formed by various arrangement positions and structural changes of the second reactor 2 or the supporting device 3 . It forms a fixed or adjustable distance, and conforms to the specifications of test voltage and safety distance, so that this creation can achieve the safety of testing cables.

The above description is only a preferred feasible embodiment of this creation, and any equivalent structural changes made by applying the description of this creation and the scope of the patent application should be included in the patent scope of this creation.

2: The second reactor

20: Second reactor body

21: Second Corona Ring

3: support device

311: Taiwan body

312: Support column

51: The first equalizing ring

53: Impedance parts

54: The first support

F: ground

S1: Single safety distance

S2: predetermined distance

Claims (14)

A test system suitable for testing a cable, comprising: a first reactor; a second reactor, coupled with the first reactor in series, the second reactor comprising: a reactor body, having a bottom surface; and a corona ring, disposed on the reactor body and used for coupling the cable, a lower edge of the corona ring and the bottom surface of the reactor body define a single safety distance; and a supporting device, Contact the bottom surface of the reactor body in a direct or indirect manner to support the reactor body of the second reactor on a ground; wherein, when the supporting device directly or indirectly contacts and supports the When the bottom surface of the reactor body is used, the distance between the lower edge of the corona ring and the ground is greater than the safety distance of the single cell. The test system of claim 1, wherein when the supporting device directly or indirectly contacts and supports the bottom surface of the reactor body, the distance between the lower edge of the corona ring and the ground is substantially equal to Twice the safe distance of the single unit. The test system of claim 1, wherein when the supporting device directly or indirectly contacts and supports the bottom surface of the reactor body, the distance between the lower edge of the corona ring and the ground conforms to a single The safety distance of the body is the specification of the test voltage specification. The test system according to claim 1, wherein the support device is a fixed base, comprising: a body for contacting the bottom surface of the reactor body; and a support column for connecting to the base and used for contacting the ground to support the platform above the ground. The test system according to claim 1, wherein the support device further comprises: a fixing base, comprising: a body for contacting the bottom surface of the reactor body; and a support column connected to the base body ; and a carrying trolley, which is arranged on the ground, and the support column of the fixing base is arranged on the carrying trolley. The test system according to claim 1, wherein the support device is a lift support device, comprising: a fixed part, used to be fixed on the ground; and a movable part, disposed on the fixed part in a telescopic manner relative to the fixed part On the fixed piece, one end of the movable piece is used to drive the reactor body of the second reactor to move up and down. The test system of claim 1, wherein the support device comprises: a lift support device, comprising: a fixing member; and A movable piece is arranged on the fixing piece in a telescopic manner relative to the fixing piece, and one end of the movable piece is used to drive the reactor body of the second reactor to move up and down; and a carrying trolley is arranged on the ground The fixing member of the lifting support device is arranged on the carrying trolley. The test system according to claim 1, wherein the supporting device comprises: a carrying trolley, disposed on the ground, and a mobile supporting device, comprising: a moving member, disposed on the carrying trolley, for communicating with the reactance The bottom surface of the device body is in contact; and an actuating unit is used to drive the transfer member to move in the horizontal direction on the carrying trolley. The test system according to claim 1, wherein the supporting device comprises: a carrying trolley for carrying the reactor body of the second reactor; and a lifting supporting device, comprising: a fixed part; and a movable part is arranged on the fixed piece in a telescopic manner relative to the fixed piece, and one end of the movable piece is used to drive the carrying trolley to move up and down. A test system suitable for testing a cable, comprising: a first reactor, disposed on a ground; a second reactor, coupled to the first reactor in series, the second reactor comprising: A reactor body is directly or indirectly stacked on the first reactor; a corona ring is arranged on the reactor body and is used for coupling the cable, the lower edge of the corona ring is connected to the reactor A bottom surface of the reactor body defines a single safety distance; wherein, when the reactor body is directly or indirectly stacked on the first reactor, the distance between the lower edge of the corona ring and the ground greater than the safe distance of the single unit. The test system of claim 10, wherein when the reactor body is directly or indirectly stacked on the first reactor, the distance between the lower edge of the corona ring and the ground is substantially equal to Twice the safe distance of the single unit. The test system of claim 10, wherein when the reactor body is directly or indirectly stacked on the first reactor, the distance between the lower edge of the corona ring and the ground conforms to a single The safety distance of the body is the specification of the test voltage specification. A test system suitable for testing a cable, comprising: a first reactor, including: a first reactor body; and a first corona ring, disposed on the first reactor body; and a second reactor a reactor coupled to the first reactor in parallel, the second reactor comprising: a second reactor body; and A second corona ring is disposed on the second reactor body and used for coupling the cable, and the minimum distance between the first corona ring and the second corona ring is not less than a specific value. The test system of claim 13, wherein the specific value is 100 centimeters.

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